Grimm did not attack immediately.
The reason being that this pair of feet was snow-white, as if the small feet of a human infant of the Sorcerers World. The small feet kept kicking and struggling in the small world aperture.
Seemingly not hearing Grimm's voice, the woman's weeping behind the world aperture grew more and more sorrowful.
After some thought, Grimm realized something. After he had inserted the Lamp of Awakening into the Dimensional Gap and hid his own Principle Will of the Sorcerers World, his body turned back into a twisted—illusionized form and emitted a heavy nightmare breath. Once again, he looked back at the pair of small feet.
What feet was there to look at?
Just strands of an odd grey mist floating as it attempted to squeeze into the Sorcerers World.